Break Every Rule But His. Nightlock Sins, #33

HE BUILT THE VAULT FOR THE EVIDENCE. HE DESIGNED EVERYTHING INSIDE IT FOR HER. Senior gaming inspector Octavia Rhodes has shut down eleven casinos. The Meridian should be number twelve. Instead, she finds Sebastian Caine-the casino's dangerously controlled, ex-FBI chief compliance officer-waiting for her with a biometric vault, twelve locked drawers, and a confession: he manipulated the audit that brought her to Saint Mercy.
Sebastian knows the pen she uses, the tea she drinks, the temperature at which she works best, and even the hairpin she touches when she's frustrated. For three years, he has studied her. For eighteen months, he has built a case against a powerful executive who turned regulatory agencies into a multimillion-dollar blackmail network. Now Sebastian needs Octavia's authority to bring the entire system down.
Inside the vault, they live by one rule: no lies. But as obsession turns into desire and professional boundaries collapse, Octavia realizes the evidence isn't the only thing Sebastian curated. Every clue, every room, and every detail of her stay was designed to lead her exactly where he wanted her. When their investigation is weaponized against them, Octavia must decide whether Sebastian's attention is devotion or control-and whether she can trust the dangerous man who has already memorized the way she breathes.